Glass is a transparent and solid material that is used in building construction and urban design. Glass is used to express many kinds of styles and produce different effects and feelings on the people who will see, enter or enjoy the space created in glass. Glass properties have been really appreciated, since the Roman Empire and have been used to make windows to allow ventilation but are also used as a decorative material. Nowadays, glass has been developed in composition allowing more uses in architecture and other fields. In Caracas glass has been used in lots of beautiful buildings such as, Centro Banaven, Parque Cristal, y Centro Seguros La Paz.